have we established that you need to be on 5V to update BBB?

given the number of posts about people who had failed attempts to
update the software on their BBB, is it established that you need to
be on 5V to do that, rather than just USB-powered? or is there any
other notable reason for perfectly respectable updates to fail?

rday

A lot of these were from the bad flasher DDR timings.

I would like to see us drop the frequency down on the flasher in order to preserve the USB powered flashing. So I am not willing to kill it just yet.

Gerald

that's fine, and i agree. and i apologize for my inordinately
pedantic nitpickery but i'm pondering embedded linux classes with 12
students all with their own BBBs and i want to have a good idea of
everything that could *possibly* screw up. i can guarantee that
everyone will be on 5V as i just don't want to take chances.

rday

Not an issue. This is on my list of things. We are just trying to knock them down as fast as we can.

The SW can tell if it is on USB power and drop the frequency down. It won’t save a lot, but maybe enough.

There is also another issue to check. The PMIC shuts down at exactly 500mA. There is a bit to be set that overrides that and in most cases should work fine. I need to check if that is still in there or if it was patched over somewhere.

Gerald